Paytm/PhonePe Wallet on UPI: The 1.1% Interchange Fee Guide

The National Payments Corporation of India (NPCI) continually evolves its guidelines to keep the UPI ecosystem sustainable. One major shift is the interoperability of digital wallets and the introduction of an interchange fee for these specific transactions.

If you are a merchant seeing unexpected deductions in your settlement reports, it is highly likely you are encountering the PPI (Prepaid Payment Instrument) Interchange Fee.

What is PPI on UPI?

Historically, if a user had ₹5,000 in their Amazon Pay or PhonePe Wallet, they could only spend it at merchants specifically integrated with Amazon or PhonePe. The wallet was a closed-loop instrument — useful only within its own ecosystem.

With PPI interoperability on UPI, a customer can now scan any UPI QR code and choose to pay using their Wallet balance instead of their bank account. This makes wallets vastly more useful for consumers and expands their acceptance footprint dramatically.

Types of PPIs: Closed, Semi-Closed, and Open Loop

RBI categorises Prepaid Payment Instruments into three types based on their acceptance scope, each with distinct regulatory requirements.

Closed Loop PPIs are issued by a merchant for use exclusively at their own outlets or platforms. Gift vouchers from a specific retail chain are a common example. These instruments cannot be used elsewhere and do not require KYC. They are not part of the UPI interchange framework.

Semi-Closed Loop PPIs are the most commonly encountered category for digital wallets. Instruments like Paytm Wallet, PhonePe Wallet, and Amazon Pay Wallet fall here. Semi-closed PPIs can be used at any merchant that accepts the instrument, but they cannot be converted back to cash (no cash withdrawal). They require minimum KYC for basic limits and full KYC for higher transaction and balance limits. The PPI-UPI interoperability and the associated interchange fee apply specifically to full-KYC semi-closed PPIs.

Open Loop PPIs function more like prepaid cards — they are issued in association with card networks (Visa, Mastercard, RuPay) and can be used wherever those networks are accepted, including ATM cash withdrawals. Prepaid forex cards and RuPay prepaid cards are examples. These are regulated differently and carry their own card network interchange rules rather than the UPI PPI interchange framework.

RBI’s 2023 PPI-UPI Interoperability Circular

The Reserve Bank of India issued a Master Direction on PPIs that was significantly updated and the NPCI aligned its UPI operational guidelines to mandate full interoperability for full-KYC semi-closed PPIs. Effective from the circular’s implementation date, PPI issuers were required to make their wallets interoperable on UPI — meaning users of any compliant wallet could pay at any UPI QR code.

To sustain this expanded ecosystem, NPCI introduced a structured interchange fee. The rationale is straightforward: wallet issuers incur load costs (credit card or net banking charges when users top up their wallets), compliance costs for full KYC maintenance, and float management costs. Without an interchange mechanism, issuers had little financial incentive to support universal acceptance.

The key provisions of the PPI-UPI interchange framework are:

• Interchange flows from the acquiring bank (the bank settling funds to the merchant) to the PPI issuer (the company whose wallet was used).
• The fee is applicable only on merchant transactions — peer-to-peer wallet transfers between individuals are excluded.
• Only full-KYC PPIs are eligible for interchange; minimum-KYC wallets with limited balances do not attract this fee.
• The interchange rate varies by merchant category code (MCC), with a ceiling of 1.1%.

Understanding the 1.1% Interchange Fee

Here are the operative rules for the PPI interchange fee as currently structured:

• The Rate: Up to 1.1% of the transaction value, varying by merchant category code. Fuel, utilities, education, and government categories may attract different rates.
• The Threshold: The fee is levied only on transactions above ₹2,000. Wallet payments at or below ₹2,000 to merchants carry no interchange charge.
• Zero Customer Cost: The customer pays nothing extra. The 1.1% fee is deducted from the merchant’s settlement by the acquiring app or acquiring bank.
• Bank UPI is Excluded: Normal UPI transactions originating from a Savings or Current bank account remain at 0% MDR as mandated by the government.

How PPI Interchange Differs from Regular UPI MDR

Understanding the distinction between UPI MDR (Merchant Discount Rate) and PPI interchange is essential for accurate cost modelling.

Regular UPI MDR refers to the merchant discount rate applicable on standard UPI transactions — that is, payments made directly from a linked bank account via any UPI app. The Government of India mandated zero MDR on UPI and RuPay transactions in January 2020 to drive digital adoption. This zero-MDR mandate has remained in force and applies to all bank-account-linked UPI payments regardless of transaction size.

PPI Interchange is a separate mechanism that sits outside the zero-MDR mandate. Because a PPI is not a bank account — it is a prepaid instrument issued by a non-bank entity — the zero-MDR government mandate does not automatically extend to it. NPCI introduced PPI interchange as the price of enabling universal QR acceptance for wallets. It is not a tax or government levy; it is a settlement between payment system participants.

In practical terms: a ₹5,000 payment from a customer’s HDFC savings account via Google Pay costs you ₹0. The same ₹5,000 payment from a customer’s PhonePe Wallet via any UPI QR costs you up to ₹55 in interchange fees, deducted before settlement.

The Financial Impact on Merchants

For high-ticket businesses — electronics retailers, travel agencies, B2B SaaS platforms, and healthcare providers — wallet interoperability is a double-edged sword.

On one hand, it increases payment success rates because customers have more payment sources available. A customer whose bank account is temporarily restricted can still complete a purchase using wallet balance, reducing cart abandonment.

On the other hand, a ₹10,000 invoice paid via an Amazon Pay Wallet will cost the merchant ₹110 in interchange fees plus 18% GST on that fee. For businesses processing significant wallet-originated volumes — particularly Paytm Wallet and PhonePe Wallet users who habitually keep balances — this adds up quickly across monthly settlement cycles.

If a third-party Payment Aggregator (PA) handles online checkout, their platform markup is layered on top of the NPCI interchange. The PA absorbs the 1.1% interchange (which flows to the wallet issuer), then charges the merchant their own platform rate, which for mid-market merchants typically ranges from 1.5% to 2.5%. The cumulative cost can exceed 3% for wallet-originated transactions.

Merchant Reconciliation for PPI Transactions

Reconciling PPI transactions requires attention to how your acquiring institution reports them in settlement files. Most banks and payment aggregators now populate the payment instrument type field in their settlement MIS — look for values such as “PPI”, “Wallet”, or a specific wallet name alongside the transaction reference.

Key reconciliation practices for merchants:

• Filter by instrument type: Separate your settlement data into bank-UPI rows and PPI-UPI rows. Your effective MDR on the bank-UPI rows should be zero. Any deductions on those rows are a PA platform fee, not interchange.
• Match deductions to thresholds: PPI interchange should only appear on transactions where the wallet payment exceeded ₹2,000. Flag any sub-₹2,000 wallet transactions that show a fee deduction for follow-up with your acquiring institution.
• GST on interchange: The interchange fee attracts 18% GST, which is deducted before settlement. Ensure your accounting system captures this as an input cost correctly.
• Dispute resolution window: NPCI and RBI guidelines specify dispute timelines for PPI transactions. Ensure your operations team tracks wallet-originated disputes separately, as chargeback handling for PPIs differs from bank-UPI reversals.

Protecting Your Margins with Zero Platform Fees

You cannot circumvent the NPCI-mandated 1.1% interchange fee when a customer chooses to pay via a full-KYC wallet. The interchange is determined by NPCI’s framework and flows to the wallet issuer — it is a structural cost of the interoperable PPI ecosystem.

What you can control is the additional platform markup that intermediaries add on top of the interchange. By routing payments through an infrastructure layer that charges a flat fee rather than a percentage markup, merchants pay only the official NPCI interchange on wallet transactions — and zero on bank-account UPI transactions.

VyaparGateway is built on this model:

1. Direct Routing: Payments route directly to your existing offline merchant account (such as PhonePe Business or HDFC Smart Vyapar), bypassing aggregator intermediaries for eligible transaction flows.
2. No Percentage Cut: On bank-account UPI payments, you pay 0%. On wallet-originated UPI payments above ₹2,000, you pay only the official interchange — VyaparGateway does not add a percentage margin on top.
3. Automated Tracking: Webhooks notify your server instantly when a payment succeeds, with instrument type metadata so your reconciliation pipeline can correctly categorise bank-UPI versus PPI-UPI transactions from the outset.

Understanding how PPI interchange works — and where in your payment stack cost is added — puts you in a position to make informed decisions about your checkout infrastructure.

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Disclaimer: PPI interchange fees and UPI MDR policies are governed by RBI/NPCI circulars and subject to change. Verify current rates with your acquiring institution.